Just wondering why I'm seeing the following in my REPL:
scala> 5.+(9) warning: there were 1 deprecation warning(s); re-run with -deprecation for details res18: Double = 14.0
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1 Answer
If you follow the instructions and run the REPL using scala -deprecation, you'll see the reason for the deprecation:
scala> 1 + 1 res0: Int = 2 scala> 1.+(1) <console>:1: warning: This lexical syntax is deprecated. From scala 2.11, a dot will only be considered part of a number if it is immediately followed by a digit. 1.+(1) ^ res1: Double = 2.0 Tested on Scala 2.10.1
3 Comments
jcm
Oh! So when the addition is performed using the 1.+(1) syntax it's converting the type to a Double as well as performing the addition, when really it should be consistent with the result of the 1 + 1 syntax and keeping the type as an Int?
Natix
There was an issue with overloading: stackoverflow.com/questions/9655080/scala-operator-oddity
tuxdna
Yeah, a space is required between an Int and
+. Checked on Scala 2.10.3 as well.